I have previously purchase Jointed Rail Locomotives for TS12. I have since upgraded to TS19. If I re-download from my previous orders, will the content be for TS19 or will it still be TS12?
In general content for older versions of Trainz will work in newer versions. Unless JR has specifically stated that the content has been updated then it'll be the "older" content.
you might have to visit jointed rail and replace some of the dependencies. especially the cabs and bogeys.
the dependencies are free after you sign in.
ejb